Fluid lift



Jan. ,9, 1940. P. M. SIECK ET AL FLUID LIFT Filed May 19, 1938 B 5186/13 Ho an 0y Patented Jonas, i940 Eur or F 1 ce f FLUID LIFT' Paul M. Sieck and Robert M. Holloway,

' Mission, Tex.

Application May 19, 1938, Serial No. 208,928

2 Claims.

vThis invention relates to an improved fluid lifting apparatus for cleaningor pumpingwells.

It is an object of this invention to provide a fluid lift of the air pressure type of simple yet durable construction which may be readily positioned in a well and operated to pump the well,

or which may be used for cleaning a well tubingv thereby eliminating the'need for removing the tubing for the purpose of cleaning.

More particularly it is an object of this invention to provide a plurality of hollow body portions adapted to be connected and disposed in spaced relationship to each other whereby air under pressure may be directed downwardly into the apparatus then upwardly and outwardly at an oblique angle to force the liquid upwardly there'- by from beneath, and to create a suction or vacuum to dra'w the liquid upwardly from below.

Other objects and advantages of the invention will hereinafter become more fully apparentfrom the following description of the drawing which illustrates a preferred form thereof, and wherein: Figure 1 is a vertical sectional view partly in elevation showing the fluid lift apparatus positioned in a well tubing,

Figure? is an enlarged vertical sectional view of the fluid lift apparatus, and

Figures 3 and 4 are cross sectional views-taken on the lines 3-3 and 4-4, respectively, of Figure 2.

Referring more particularly to the drawing tubing having an outlet ll adjacent its top. The fluid lift designated generally l2, and as seen in Figure 1', is adapted to be positioned in" l the well tubing I with thehollow casing l3, which is open at bothends positioned adjacent the bottom of the tubing I ll. Disposed within the casing I3 is a tubular member M, which is'open at both ends, and whichis provided with the internally threaded lower end l5 to receive the threaded plug i6 which is removably positioned therein to close the lower end oftube l4. As seen intFigures 3 and 4, tube l4 is-mounted centrally of the bore of the casing I3 by means of the radially disposed threaded bolts 41 which engage threaded openings ll in casing I 3 and tube M. An air pipe 18 comprising a pluralityof, sections 19, connected by the coupling members 28 I extends downwardly through the well tubing 19 with the lowermost section l9 projecting into casing l3 and tube Land having its open end ll disposed adjacent the plug I6; The lower end of pipe I8 is likewise held in spaced relationship to the wall of tube M by the threaded bolts 22., which correspond to bolts l1, and which have their opposite ends mounted in the, threaded 5 openings 23 in tube l4 and pipe l8.

Tube l4, adjacent its upper end, is provided with a plurality of diagonally disposed openings 24 and a plurality of notches or cut-out portions 25 in its upperend. The upper end of. the pipe I8 is connected to a suitablesource of compressed 10 air, so that the air-may be forced downwardly through pipe 18, as indicated by the arrows in FigureZ, and out through end 2| of this pipe into the tubular member i l; Since the lower end l5 of tube I4 is closed by the plug IS, the air will pass upwardly through tube I4 and on the outer side of pipe l8 to be exhausted through'the open upper end 26, and also through openings 24 and. notches 25. In most instances, casing l3 will be entirely beneath the l quid level of the well tubing Ill so that the air passing upwardly into the casing l3 will force the upper end of the column of liquid in tubing l0 upwardly to be dispensed through the outlet l I. The air passing outwardly through end 26, notches and openings 24 will create a suction to form a vacuum in the bottom of the well tubing 10 to lift the liquid which is beneath the openings 24, so that a steady flow through outlet II will be maintained while compressed air is being released into the pipe l8. The oblique arrangement of the openings 24, and the notches 25 will direct the air upwardly and outwardly to materially increase the suction in the casing. l3, particularly in the area between casing l3 and tube l4. I

While the device has been described as a pumping apparatus, it isue'qually well adapted for cleaning the well tubing l0 and may be readily employed'for this purpose since it createsa strong suction in-the bottom of the well and the well 40 tubing to keep these parts clean thereby eliminating the necessity of pulling the 'well tubing 7 ill for the purpose of cleaning it.

Various modifications and changes in the con-- struction and arrangement of the parts forming the invention may obviously be made and are contemplated and the right-is reserved to make ,such variations and changes as do not depart from the spirit and scope of the invention as hereinafter defined by the appended claims.

We claimvas our invention: 7 I v 1. In a devioeof the class described, ahollow casing open at each. end and adapted to be positioned adjacent the bottom of a well tubing, a

- tubular member. positioned in said casing and 55 held in spaced relationship to its wall, a plug positioned in the lower end of said tube, an air pipe connected to a source of compressed air and extending into said tube, spacing means to hold 5 said pipe in spaced relationship to the tube whereby the air from the pipe can pass freely upwardly between the pipe and tube, said tube being provided with a plurality of openings and cut-out portions arranged to direct the air upwardly and n outwardly into the casing to lift the fluid and to create a suction at the bottom of the well tubing.

cent its upper open end, a pipe, connected to a. source of air under pressure, having its lower open end extending into and opening adjacent the lower end of said tube, threaded bolts connecting said casing and tube and the tube and lower end of the pipe to position said parts in concentric spaced relationship to each other, and a threaded plug disposed in the threaded end of said tube to seal it so that air under pressure from said pipe will be directed upwardly through said tube, out through said inclined passages and its open upper end to create a suction therebeneath.

PAUL M. SIECK.

R. M. HOLLOWAY. 

